Silicon Valley billionaire venture capitalist and Sun Microsystems co-founder Vinod Khosla wants everyone to stay off Martins Beach, a lovely stretch of oceanfront south of Half Moon Bay. To that end, he is invoking The Treaty of Guadalupe Hidalgo, which ended the Mexican-American War in 1848 and transformed California from being a chunk of Mexico to becoming part of the USA. Okay, Vinod. Whatever.

Jeffrey writes, "Bay area flyers, come talk and fly drones over pizza and beer in our massive 17 foot tall ceiling warehouse!
Amateur and professionals are welcome to come and talk drones and show off their airframes in action. We'll have plenty of charging stations, onsite repair workbench, tasty local beer, and food/snacks for flyers.
Compete for fun prizes, fame, and whimsical trophies in our drone flying contests.
Starts at noon on April 5, contests start at 2 PM.
Plenty of parking and free for all."